Lets be clear, if you had cancer you would want a diagnosis, whether it led to you being labelled or not.
Being neuro-diverse is no difference, you need a diagnosis. Whether it is cancer or adhd, when you have a diagnosis, you can start dealing with the problem. Once I knew what my problems were, I could understand them. In many cases I had recognised individual problems and found ways of coping. Understanding them meant I could refine my adjustments and also explain my problems.
What does worry me is that we now live in an age of victimhood. The papers are full of people who have suffered various difficulties in life, some quite mild, wailing that their lives have been destroyed because, for example, their GCSE or A level marks are not high enough for their planned future, No they aen't, their plans have been knocked off course a bit, they may need to do resits, or study something else.
This is where 'labelling' is a problem. I saw my diagnosese as a way forward, something enabling, that made sense of my life and myself and explained why I find smart phones so difficult to use. I am not stupid, or elderly (well I am), but that I have dyspraxia and that young people with dysparaxia also have problems.
Too often these days these diagnoses seem to be seen as an excuse for making no effort to learn to manage one's problems but an excuse to give up and whine.